Shuttle



'May 25 1926. 1,585,921

R. JAMIESON SHUTTLE Filed Jem. 21,- 1926 2 Sheets-Sheet 1 INVENTOI? rr-roeNeY May 25 1926. 1,585,921

R. JAMIESON SHUTTLE Filed Jafi. .21, 1925 2 Sheets-Shet 2 Fly:

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,4 TTORNEY Patented May 25, 1926.

warren STATES PATENT 'OFFECE.

ROBERT JAMIESON, OF UTIOA, NEW YORK, ASSIGNOR TO DRAPER CORPORATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

SHUTTLE.

Application filed January 2 1, 1926. Serial No. 82,707.

This invention relates to shuttles for looms and is more particularly directed to controlling the delivery of thread from the shuttle during weaving.

It is now the ordinary practice to wind filling on filling carriers or bobbins for use in loom shuttles, so that the windings of filling or thread shall be laid in conical layers towards the end of the bobbin 0r filling carrier. As the filling is Withdrawn from the filling carrier or bobbin during Weaving, the conical end delivery portion of the wound mass of filling progressively gets nearer and nearer the head of the bobbin.

It has been proposed heretofore to control the delivery of thread or filling from the shuttle by securing brushes or bristles in the bobbin chamber which bear upon the filling in the shuttle and control the unwinding of the filling. In some cases, however, the filling becomes entangled with the bristles or brushes to such an extent that it may be broken, and this is especially observable in cases where the filling is of kinky character or has fibres projecting from the body of the thread. It has also been proposed to secure at the sides of the bobbin chamber a piece of fabric, so that as the filling unwinds from the filling carrier or bobbin its outward swirling movement will carry it into contact with the fabric and in a measure control delivery of the filling from the shuttle.

The object of the present invention is to provide a filling uncoiling control for the shuttle, such that the conical end portion of the filling carrier from which the yarn is unwound will have bearing directly upon it the filling delivery controlling means regardless of the position of the conical end windings longitudinally of the filling carrier or bobbin.

In accordance with the present invention, the shuttle has projecting into the bobbin chamber a series of bristles or brushes, and normally pressed inward thereby is a flexible material such as fabric or the like which bears upon the filling in the shuttle during the unwinding operation. Owing to the flexible nature of the fabric, the underlying bristles function to hold the fabric against the mass of yarn upon the bobbin or filling carrier.

The invention and novel features thereof will best be made clear from the following description and the accompanying drawings of one good form thereof.

In the drawings Fig. 1 is a perspective view of an automatically replenishing shuttle provided with the present invention, one wall of the shuttle being broken away to show the thread controlling means beneath, the filling in this case being shown as of right-hand wind;

Fig. 2 is a view similar to that of Fig. 1, showing the use of the present invention in connection with a filling carrier on which the filling has a left-hand wind;

Fig. 3 is a detached detail showing the wall of the shuttle of Fig. 1, with the bristles projecting therefrom into the bobbin chamber and underlying the piece of flexible ma terial;

Fig. 4 is a fragmentary view of the shuttle of Fig. 1, having a filling carrier therein, and one wall of the shuttle with the present invention applied thereto;

Fig. 5 is a plan view of the shuttle containing the present invention, some portions of the shuttle being broken away; and

Fig. 6 is a section on the line 6-6 of Fig. 5, showing a slightly modified means of securing the flexible material to the shuttle wall.

The shuttles shown by Figs. 1 and 2 are of the filling replenishing type wherein the filling carrier is ejected from the shuttle on call for replenishment of filling, but it is to be understood that the invention may be advantageously employed with other forms of shuttles.

Referring to Fig. 1, the shuttle body 1 has the usual bobbin chamber 2 in which is supported the filling carrier 3, the head portion 4 of which is engaged by the usual bobbin holding aws 5, and as vcommon in this general type of shuttle, the bottom of the shuttle is open for the passage of the filling carrier when replenishment is effected, as indicated in Fig. 6.

The leading or eye end of the shuttle is provided with a threading block 6 having a longitudinally extending thread passage provided with a thread casting device 7, the purpose of which is to cast the thread on the occurrence of a loop or overthrow, substantially as more fully described in the patent to Edward S. Stimpson, No. 1,809,226, dated July 8, 191.9.

In the shuttle illustrated by Fig. 1, the filling carrier 3 has the filling a wound thereon in right-hand wind, so called, and the thread casting device 7 rises from the righthand side of the thread passage and extends upwardly, laterally and trontwardly, as more fully explained in the patent to Stimpson, hereinbefore mentioned.

Secured to the side of the shuttle and projecting into the bobbin chamber are a series of bristles or brushes 8, preferably secured near the top portion of the side wall 11, as at 9, and extending downwardly and frontwardly in the general direction towards the open bottom of the shuttle, so as not to interfere with the ejection of the filling carrier on replenishment of filling.

Overlying the bristles or brushes 8 is a strip. of flexible material 10 which is secured to the same side of the shuttle as the bristles and extends downwardly into the bobbin chamber in overlying relation to the bristles.

The strip of flexible material is shown in Fig. 1 as secured to the top of the side wall 11 of the shuttle, and as one good form of means for eflecting the connection between the flexible material and the side wall of the shuttle, the top edge portion 12 of the flexible material is shown as doubled over, as at 18, and entering an undercut or rabbet in the top portion of the side wall, in whichit may be secured appropriately by any suitable means such, for instance, as an adhesive material or gum, although any other form of securing means may be employed.

The strip of flexible material 10 thus secured to the top of the side wall 11 of the shuttle extends downwardly towards the open bottom of the shuttle and overlies the bristles or brushes 8 which cause the tree portion of the flexible material to be deflected inwardly in a yielding manner to bear upon the mass of wound filling in the shuttle.

In the shuttle as represented by Fig. 1, the filling a unwinds from the conical end portion 14 of the filling mass from the top towards the flexible material 10 and down wardly past such material, and consequently in a right-hand wound bobbin or filling carrier it is desirable that the bristles or brushes and the flexible material 10 be secured to the shuttle at the side thereof opposite the feeler slot usually provided in such shuttles, so that the unwinding filling first engages the top portion of the flexible material 10 and then travels over the surface of such material in a lateral and downward direction. During weaving and as the thread is withdrawn from the conical end portion 1st of the mass of wound filling, such conical end will progressively become nearer and nearer the head of the bobbin, and owing to the flexible yielding nature of the bristles or brushes 8 bearing upon the underneath side of the flexible material, the latter is held in close ongagement with the conical end windings as such conical end wlndings approach the base of the bobbin.

In some cases it may be desirable to secure 7 the end of the flexible material to the adjacent side wall of the shuttle, as indicated in Figs. 4 and at 15, and this may be done by a suitable adhesive applied to the fabric or the adjacent surface of the shuttle wall, although it is to be understood that any other suitable means may be employed for this purpose. In such case the end portion oi the flexible material serves to prevent the flexible material from turning upwardly out of the bobbin chamber and maintains it in proper relation to the underlying brushes or bristles.

In Fig. 2 a shuttle of the filling replenishing type is shown on which the filling has a reverse or left-hand wind. In this case the threading block 6 has the thread casting device 7, which is substantially the same in all respects as the thread casting device '7 of Fig. 1, secured at the left-hand side of the longitudinally extending thread passage to cast the thread on the occurrence of a loop or overthrow. In Fig. 2 the brushes or bristles 8 are secured to the front wall of the shuttle containing the feeler slot 16, and like the bristles or brushes 8 in Fig. 1 they extend downwardly and inwardly oi the bobbin chamber. The flexible material is also secured to the front wall of the shuttle, preterably at the top portion thereof, as indicated in Fig. 2, and extends downwardly in overlying relation to the bristles into the bobbin chamber. In a reverse or left-hand wound bobbin, the filling a, as indicated in Fig. 2, moves from the top portion of the conewindings of the bobbin towards the front wall of the shuttle containing the teeler slot 16, and consequently it moves during the un winding operation from the top of the flexible material downward, substantially as in a right-hand wound bobbin, wherein the bristles or brushes and flexible material are secured to the opposite wall of the shuttle lVhere the brushes or bristles and flexible material are secured to the wall of the shuttle containing the feeler slot, they cannot be extended the full length of the shuttle to cover the feeler slot, and therefore in the construction illustrated by Fig. 2, there is secured to the back wall. of the shuttle opposite the feeler slot a series of bristles or brushes 1? which extend from the rear wall over the top portion or the filling within the shuttle, the construction being such that as the filling a unwinds from the filling carrier, it will move in substantially the direction of the extension of the brushes or bristles 17.

As indicated in Fig. 2, the end portion of the flexible material 10 may be secured to the adjacent wall of the shuttle, as at 18,

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to maintain the flexible material in its proper overlying relation with the bristles, and extending downwardly into the bobbin chamber.

In Fig. 6, the top portion of the flexible material 10 which overlies the bristles 8 is secured to the top of the wall of the shuttle by pins or tacks 19 which may be driven through the down-turned end portion 20 of the flexible material, and as more fully shown by Fig. 6, the flexible material 10 is held yieldingly pressed against the mass of filling in the shuttle by the yielding bristles or brushes 8, so that as the filling is unwound from the filling carrier it will be subject to a frictional control to provide the necessary tension on the yarn during weaving.

It is usually sufficient to maintain the flexible material 10 in its overlying relation to the brushes or bristles 8 by securing one end portion of the flexible material to the adjacent side wall of the .shuttle, although, of course, both ends of the flexible material may thus be secured if desired.

From the construction described it will be apparent that as the filling is unwound from the filling carrier during weaving and the conical windings approach nearer and nearer the base of the bobbin, the brushes will maintain the flexible material in contact with the conical Wind. Preferably, the lower edge portion of the flexible material 10 extends beyond the end portions of the bristles, sulliciently, at least, to prevent the ends of the bristles themselves from becoming entangled with the unwinding filling, as indicated in Fig. 6, and whether the windings on the filling carrier be right or left hand, the overlying flexible material should extend into contact with the filling from one or the other side of the shuttle in accordance with the direction of the unwinding filling, so that the filling itself will travel along the flexible material in a downward direction.

What is claimed is:

1. In a shuttle having a thread delivery control for engagement with the thread on the filling carrier, the combination of a flexiblc strip of material secured to the shuttle at one side of the filling carrier, and brushes acting to maintain the flexible strip against the filling on the filling carrier dur- 111g \VQflVlng.

2. In a shuttle, the combination of a series of bristles projecting into the bobbin chamber, and a strip of flexible material overlying the bristles to bear upon the filling in the shuttle.

3. In a shuttle, the combination of a series of bristles secured at one side of the bobbin chamber, and a strip of flexible material overlying the bristles to bear upon the filling in the shuttle.

4. In a shuttle, the combination of a series of bristles or brushes secured to one wall of the shuttle and projecting downwardly into the bobbin chamber, and a strip of flexible material secured to the top of the wall in overlying relation to the bristles which hold it yieldingly against the filling in the shuttle.

5. In a shuttle, the combination of a series of bristles or brushes secured to the top ofone wall of the shuttle and projecting downwardly into the bobbin chamber, and a strip of flexible material secured to the top of the wall in overlying relation to the bristles which hold it yieldingly against the filling in the shuttle.

6. In a shuttle, the combination of a strip of flexible material secure-d at one edge to the top portion of one side wall of the shuttle with its free edge extending downwardly into the bobbin chamber, and a series of bristles secured to the same side wall and acting yieldingly to hold the flexible material against the filling in the shuttle.

7. In a shuttle, the combination of a strip of flexible material secured at one edge to a side wall of the shuttle with its free edge extending into the bobbin chamber, and, yielding means between the flexible material and side wall of the shuttle to hold the flexible material against the filling in the shuttle.

8. In a shuttle, the combination of a strip of fabric secured at one edge to a side wall of the shuttle with its free edge extended into the bobbin chamber, and means between the fabric and side wall of the shuttle acting to hold the fabric yieldingly against the filling.

9. In a shuttle, the combination of a strip of fabric extending longitudinally of the shuttle and secured at one edge to a side wall of the shuttle with its free edge extended into the bobbin chamber, and means between the fabric and side wall of the shuttle acting to hold the fabric yieldingly against the filling.

10. In a shuttle, the combination of a strip of flexible fabric extending longitudinally of the shuttle and secured along one of its longitudinal edges and one of its transverse edges to the side wall of a shuttle with its free edge extending into the bobbin chamber, and means between the strip of fabric and the wall of the shuttle acting to yieldingly hold the free portion of the fabric against the filling in the shuttle.

In testimony whereof, I have signed my name to this specification.

ROBERT J AMIESON. 

